May 28, 2012.
Today, there is a LPS (Low Pressure System) North of the NE U-S. A cold front is stretched South, from this system and into the North East, Ohio River Valley and Central & Southern Plains. Along this cold front there is a likely chance for rain and a slight risk for Severe Weather. There is a ridge of High Pressure anchored over the Lower Mississippi River Valley to include Louisiana.
In the Tropics, Beryl is making the turn toward the Atlantic Ocean. For details on T.D. Beryl, follow the link at the bottom of this post (Tracking T.D. Beryl).
With this ridge of high pressure anchored over the area, skies will remain mostly sunny to partly cloudy. With a light to moderate wind out of the South, we will continue to see dewpoints rise.
(There is a direct relationship between the air temperature and the dewpoint. With these two variables, we are able to calculate RH (Humidity). So, the higher the dewpoint, the more humid the air is. Also, when the air temp cools to the dewpoint there is 100% Humidity and the air is fully saturated. Therefore, the air temperature can never get lower than the dewpoint. The dewpoint doesn't always stay the same and can rise and fall. However, since moisture is harder to move around and water has a higher heat capacity, the temperature of moist air rises and falls much slower than that of dry air. So, the dewpoint does not change as rapidly as the air temperature.)
As dewpoints rise, the RH will go up and it will feel even more muggy. This will continue through the beginning of the work week, as a cold front approaches Cenla from the west. The tail end of this cold front will stall and fizzle out over our area. The rest of the front will push through, to the eastern seaboard. This system will be the feature that is most responsible for pushing Beryl back into the Atlantic Ocean.
For the rest of the day;
Expect In & Out cloud cover with skies becoming partly cloudy this afternoon. Afternoon highs will climb into the upper 80's and mid 90's. Winds will be light to moderate and out of the South, becoming calm late this evening and into the overnight hours. Skies will clear out again during the evening hours and we will see Clear skies and a mild feel over night, tonight.
For the rest of the 7day planner;
Expect low rain chances through the beginning of the work week as a ridge of high pressure continues to dominate the forecast. A cold front will approach the area and bring rain chances up and increasing clouds, beginning Wednesday. The tail end of the front will stall and fizzle out by Friday. Coupled with the front, temperatures will drop into the mid to upper 80's. This will provide a short break from the seasonably hot temperatures that we have been seeing. The weekend will bring with it; clearing skies, falling rain chances and warming temperatures.
TODAY (Memorial Day)...Mostly sunny to partly cloudy skies and hot. Highs 91-97. SW wind 2-10mph.
MONDAY NIGHT...Fair skies and near seasonal temps. Lows 65-71. Little to no wind.
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Tracking T.D. Beryl